Diagnostic Test for Placement
Diagnostic Test for Level 2 [AP Plus&Local]?
Diagnostic Test for Level 4 [High Honor&Camp]?
Diagnostic Test for Level 2 [AP Plus&Local]?
- Check your readiness for Level 2 Class by clicking the picture above (passcode: DChO2026) to complete 40 Multiple-Choice Questions in a consecutive 60 minutes.
- Email Dr. Chen (chen@dcho.us) for results and recommended placement.
- Level 2 class is designed for motivated students who will take AP Chemistry or equivalence in the fall concurrently to prepare for the USNCO Local Exam 2026.
Diagnostic Test Level 3 [Post-AP&National]?
Diagnostic Test for Level 4 [High Honor&Camp]?
Diagnostic Test for Level 2 [AP Plus&Local]?
- Check your readiness for Level 3 Class by clicking the picture above (to be added) to complete XX Multiple-Choice Questions in a consecutive XX minutes.
- Email Dr. Chen (chen@dcho.us) for results and recommended placement.
- Level 3 class is designed for students with a 4 or 5 in the AP Exam (or equivalence) or scored 35+ in the Local 2025, to prepare for the USNCO National Exam 2026.
Diagnostic Test for Level 4 [High Honor&Camp]?
Diagnostic Test for Level 4 [High Honor&Camp]?
Diagnostic Test for Level 4 [High Honor&Camp]?
- Check your readiness for Level 4 Class by clicking the picture above (passcode: DChO2026) to complete 30 Multiple-Choice Questions in a consecutive 50 minutes.
- Email Dr. Chen (chen@dcho.us) for results and recommended placement.
- Level 4 class is designed for students who scored 35+ in the National 2025 Part I, to aim for High Honor & Camp in the USNCO National Exam 2026.
Interested in Chemistry Olympiad Classes for 25–26?
Choose the path that fits you best:
- Self-Study + Diagnostic
Study Honors or AP Chemistry on your own, then take Dr. Chen’s diagnostic tests to determine fall placement. Recommended textbooks - Summer Class with Dr. Chen
Take an intensive Pre-AP or Organic Chemistry Class this summer with Dr. Chen to prepare for Level 2, 3, or 4 Olympiad training in the fall. - Start Now – Self-Paced
Prefer to begin right away? Purchase recordings and materials for Level 2, 3, or 4 from 2024-25 and start learning at your own pace!